The Chilled cast iron rolls shell has a remark able mechanical performance.With virtually no fall off in hardness due to the quantify of graphite remains basically unchanged throughout the working year.The Chilled cast iron rolls hardness of roll depends mainly on the type of matrix,namely sorbite or martensite. The Alloy Indefinite Chilled Rolls matrix structure can be controlled according to the use conditions to turn it into pearlite, tempered sorbate, pearlite + bainite, or bainite.Tensite, bainite + a small amount of martensite, with good hot crack resistance.As well as Alloy Indefinite Chilled Rolls for sections.Alloy Chilled Cast Iron Roll for rods.Alloy Indefinite Chilled Rolls for wire rods.And narrow strip steel.
There are more carbides in the matrix of the working layer of high Ni-Cr indefinite chilled cast iron roll body, so ICDP rolls have higher wear resistance, and the presence of graphite in the matrix makes it have good thermal cracking resistance.
The ICDP rolls are made of high Ni-Cr alloy with extremely high hardness and wear resistance, which can withstand high stress and wear during rolling. ICDP rolls have good thermal cracking resistance and can avoid cracks at high temperatures. ICDP rolls have good thermal conductivity and can evenly dissipate heat to prevent local overheating of the roll body. Long service life, reduce ICDP rolls replacement frequency, reduce maintenance costs.
The ICDP rolls can improve the production efficiency of the mill, reduce the downtime and the frequency of ICDP rolls replacement during the production process, and thus reduce the production cost.
The high nickel Alloy Chilled Cast Iron Roll is a kind of high performance and high reliability roll, which can significantly increase the service life of the ICDP rolls, improve the quality of rolled products, reduce the rolling cost and improve the production efficiency. Alloy Chilled Cast Iron Roll is an ideal choice for modern steel mills to improve production efficiency and product quality.
For the finishing stands of the continuous rolling mill of strip and bar, the pre-finishing stands of high-speed wire, the intermediate, and the front of finishing stands of a small section are also utilized as thin plates and straightening rolls.
Chemical Analysis | ||||||||
Crades | C | Si | Mn | P | S | Ni | Cr | Mo |
IC I | 3.0-3.5 | 0.5-1.0 | 0.5-1.0 | ≤0.025 | ≤0.15 | 0.5-1.0 | 0.5-1.0 | 0.2-0.6 |
IC II | 3.0-3.5 | 0.5-1.0 | 0.5-1.0 | ≤0.025 | ≤0.15 | 1.0-2.0 | 0.5-1.0 | 0.2-0.6 |
IC III | 3.0-3.5 | 0.5-1.0 | 0.5-1.0 | ≤0.025 | ≤0.15 | 2.0-3.0 | 0.7-1.2 | 0.2-0.6 |
IC IV | 3.0-3.5 | 0.5-1.0 | 0.5-1.0 | ≤0.025 | ≤0.15 | 3.0-5.0 | 1.0-2.0 | 0.2-0.6 |
Physical Properties | ||
Grades | Hardness | Tensile strength |
IC I | 60-70HSD | ≥150 MPA |
IC II | 62-72HSD | ≥150 MPA |
IC III | 65-75HSD | ≥350 MPA |
IC IV | 70-85HSD | ≥350 MPA |